VLBI Activities Overview
The GSFC VLBI group performs activities that support and develop VLBI,
including research, data analysis, software development and hardware support.
The group participates formally in an international community of VLBI institutions,
IVS (the International VLBI Service for Geodesy and Astrometry) but also
functions as an independent VLBI group.
One of the GSFC VLBI group's most useful activities is the contribution
of Earth Orientation data, especially UT1 data, for other institutions'
use. For example, this data has supported launches at JPL--JPL's 2003 Mars Rover,
2004 Cassini-Huygens and 2007 Phoenix Mars Lander missions.
Further details about the GSFC VLBI group's activities are available